UM1 vs UM2 printing

Recommended Posts

I have now been printing for a while on my UM2 and I just cannot get it to print with the same quality as my "old" UM1.

I am getting dots in the prints and other artifacts as well. The surfaces are not as smooth when printed on the UM2 vs UM1. I have done some comparison prints using the same PLA-roll, same ambient temperature, slicing latest Cura etc.

Here are some examples:

Left: UM2 and right: UM1. Clear artifacts in the back. Much smoother on the UM1 print.

Share on other sites

This might be a silly question, but have you done the parts on your UM1 with the current Cura? Or were the prints from UM1 made with an older Cura version?

I ask that question because I see some similar dots and artefacts right now on prints made with my UM1 and Cura 13.11.2. But my issues may have a different origin... just to rule Cura out as a cause...

Share this post

Link to post

Share on other sites

Crisis averted, I'm a moron. I had forgotten that I created a completely different install for the UM2 so I wouldn't accidentally screw my UM1 settings.

Aaanyways, here's what I'm using at the moment, not tweaked all that much but it should get you started. Please note that you'll have to pre-heat your bed if you want to use it. I haven't bothered figuring out why the firmware doesn't wait for the bed to reach temp (it waits for the bed to cool down from a higher temp though strangely enough): http://theintarweb.net/ultimaker/KISSlicer%201.1.0.zip

Share this post

Link to post

Share on other sites

Aaanyways, here's what I'm using at the moment, not tweaked all that much but it should get you started. Please note that you'll have to pre-heat your bed if you want to use it. I haven't bothered figuring out why the firmware doesn't wait for the bed to reach temp (it waits for the bed to cool down from a higher temp though strangely enough)

Bug in the firmware, I made a mistake and this swapped the "wait for heating" to "wait for cooldown" on the bed M190 command. I've fixed it for the next version. I've been running into the same problem with my Doodle3D experiments.

Our picks

The goal of this contest is to design a set of people figurines that could be used in such a project to make an area, office or mall seem populated.
Think of different types of people in different environments, like walking people, people standing still, working people, and both men and women.

31 replies

Picked By

This is a statement that’s often made about AM/3DP. I'll focus on the way DfAM can take advantage of some of the unique capabilities that AM and 3DP have to offer. I personally think that the use of AM/3DP for light-weighting is one of it’s most exciting possibilities and one that could play a key part in the sustainability of design and manufacturing in the future.